360 Coleopterological Notices, VII. 



The singular arcuate excavation on the interior surface of 

 antennal joints four to six is very distinct is the male above de- 

 scribed. This species resembles hiformis in the general form and 

 size of the body, but differs profoundly in the antennae, there 

 being no suggestion of a regular arcuate excavation in that 

 species, in its longer and more abundant pubescence, more 

 strongly and obliquel}^ narrowed elytra posteriorl^'^, smaller 

 lateral fovea of the pronotum and in many other features. 



3. L,. gracilis Lee— Proc. Acad. Nat. Sci., Phila., 1852, p. 155 (Scyd- 

 msenus). 



Elongate-oval, narrow, polished, impunctate, pale ferruginous 

 throughout, the antennae and legs concolorous ; pubescence sparse, 

 moderate in length, coarse, pale in color, recurved on the elytra, 

 more abundant on the neck. Head longer than wide, the neck 

 carinate and biimpressed above as usual ; eyes median, moderate 

 in size, not very convex ; clypeus as in hiformis. Antennae very 

 long, |- as long as the bod}^ ; first and second joints equal, cjdin- 

 dric, twice as long as wide; third scarcely narrower, nearl}^ as 

 long as wide, less than \ as long as the second ; fourth very large, 

 rounded, more than twice as long and wide as the third ; fifth 

 narrow, longer than wide ; sixth obliquely and angularly pro- 

 longed internally, transverse, wider than any other joint; inner 

 sides of joints four to six forming an even sinuosity; seventh 

 small, oval, rather longer than wide ; eighth a little larger, sub- 

 globular, rather narrower than the ninth and tenth, which are 

 almost as long as wide ; eleventh not quite as long as the two 

 preceding, obtusely ogival ; ninth to eleventh just visibly in- 

 creasing in thickness. Prothorax distinctly elongate, rather 

 gradually and arcuately narrowed anteriorly, parallel and carinu- 

 late at the sides toward base, ^ wider than the head ; disk trans- 

 versely and feebly impressed near the base, the impression feeblj^ 

 interrupted at the middle and with a small and very feeble fovea 

 near each basal angle. Scutellum minute, elongate. El3'tra fnWj 

 ^ longer than wide, 2^ times as long and 2^ times as wide as the 

 prothorax, almost evenly elliptical, the humeri somewhat visible; 

 humeral plica moderate in length and acuteness, the impression 

 distinct and elongate ; inner fovea deep ; disk somewhat flattened 

 near the suture toward base, the suture acutely elevated but not 

 beaded in basal third. Legs long and slender, the femora only 

 moderately clavate. Length L5 mm.; width 0.58 mm. 



